YY/T 0490-2017: Translated English of Chinese Standard. YY/T0490-2017: Tracheobronchial tubes - Sizing and marking
https://www.chinesestandard.net, 2018年8月10日 - 13页
This Standard provides requirements for size designation and labelling of tracheobronchial tubes, including colour coding of the bronchial cuff and its associated pilot balloon. Tracheobronchial tubes that include bronchus blockers are excluded from the scope of this Standard.
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